syscon(7)
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syscon Special File
DG/UX operating system console pseudo-device
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DESCRIPTION
The DG/UX system uses the notion of an "operating system
console," which is the terminal on which initial system
administration is performed and to which various messages from
the kernel are written. By necessity, this terminal is also the
terminal (physical system console) used by the system
administrator to communicate with the processor when the
operating system is not running.
The actual device which provides the physical system console
interface is one of con(7), odrt(7), or bmd(7), depending upon
the hardware configuration of the system. However, regardless of
the actual system configuration, the DG/UX operating system
console is accessible only through the syscon pseudo-device
interface, using the file node /dev/syscon. This device provides
the standard DG/UX terminal interfaces (termio(7), tty(7)),
except that changes to hardware settings such as baud rate, stop
bits, and parity have no effect.
FILES
/dev/syscon
/dev/systty
/dev/console
SEE ALSO
con(7), odrt(7), bmd(7), termio(7), tty(7)
DG/UX 4.00 Page 1
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